المجلة الدولية للاداء الاقتصادي
Volume 5, Numéro 2, Pages 428-454
2022-12-04
The Non-existence Of An Inflation-output Trade-off Under The Rational Expectations Hypothesis As The Cause Of The Steady State Situation. Overtaking Attempt
Authors : Abouderaz Sofiane .
Abstract
This article tries to prove the existence of an inflation-output (unemployment) trade-off, at least in the long-run, under a context of the rational expectations hypothesis REH, which makes it possible to overcome the Lucasian steady state situation. This existence of trade-off is due to the importance of saving and the accumulation of capital over time, but also to unexpected economic policies by the agents, which is effective to grow the economy. To achieve this objective, we will expose the unrealistic aspect of REH which avoids any inflation-output (unemployment) trade-off in the short-run and the long-run, and consequently it leads the economy to an infinite steady state situation. Our work undertakes a personal philosophical and mathematical approach, but which finds its origins in the pioneering works of economic growth theory, namely those of Harrod, Domar and Solow. we have tried to propose a solution for overcoming the steady state à la Lucas. our work requires further work to strengthen its theoretical and mathematical framework...or criticize it!
Keywords
Rational expectations hypothesis ; inflation-output trade-off ; NAIRU ; growth theory ; The Harrod-Domar consistency condition ; saving ; capital accumulation
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